Textile-reinforced all-polymeric hose

Abstract

Abstract An all-polymeric textile-reinforced hose particularly suited for pressure service, typically an all-nylon hose, and a method of making same are disclosed. The hose comprises an inner thermoplastic tube, at least one knitted layer of thermoplastic textile reinforcement, and a polymeric outer protective jacket. The innermost reinforcing layer is fused to the inner tube and any successive reinforcement layers are fused to one another. This fusion is typically accomplished by plasticizing with a resorcinol-water solution and juxtaposition of the components to be joined after which the resorcinal plasticizing agent is removed with a water bath. Before the outer polymeric jacket is applied, the assembly is plasticized with a plasticizing agent which is thereafter removed; this effects activation of the plastic in the outer knitted textile layer and such activation, coupled with the activation in the rest of the structure as a result of previous treatments with a softening agent and removal thereof, enhances the bonding of the outer jacket to the assembly. The textile reinforcement may be constituted by synthetic multifilament yarns made of continuous thermoplastic filaments, having a total twist (including any so-called producer''s or manufacturer''s twist) of from 0 to 15 turns per inch, preferably from 1 to 5 turns per inch. Alternatively, but generally less preferably, the reinforcement may be formed of thermoplastic staple yarns or of so-called monofils.

Inventors

• 👤 William J Atwell
• 👤 Lawrence Cranston

Bibliographic Details